If your speech touches on your grandfather’s accomplishments in the workplace and community, perhaps you’ll choose a serious tone to honor him. But if your tribute talks about your sister’s playfulness and love of life, you may decide to go with a more light and cheerful approach. While it’s ok to tell a funny story or have a slightly humorous tone, remember to be respectful. Tread lightly with embarrassing stories, dark humor, controversial subjects, and jokes at another’s expense.